US5135227A - Wood-type metal golf club head and process for producing the same - Google Patents
Wood-type metal golf club head and process for producing the same Download PDFInfo
- Publication number
- US5135227A US5135227A US07/750,306 US75030691A US5135227A US 5135227 A US5135227 A US 5135227A US 75030691 A US75030691 A US 75030691A US 5135227 A US5135227 A US 5135227A
- Authority
- US
- United States
- Prior art keywords
- wood
- golf club
- club head
- vinylidene chloride
- type metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/08—PVDC, i.e. polyvinylidene chloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0085—Copolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
- B29K2105/165—Hollow fillers, e.g. microballoons or expanded particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
- B29L2031/5227—Clubs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/06—Molding microballoons and binder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S273/00—Amusement devices: games
- Y10S273/07—Glass fiber
Definitions
- the present invention relates to a wood-type metal golf club head which can give a lengthened shot and reduce the undesirable metallic sound during hitting.
- rigid polyurethane foam is injected thereinto as core material in order to improve its feel when it is hit.
- the rigid polyurethane foam is difficult to fill in the cavity of a metal head body with its cells uniformly dispersed therein, with the result that some cells are joined together to form a so-called void or a large crevice. This causes the disadvantage of an undesirable metallic sound during hitting and a reduction in the length of the shot.
- An object of the present invention is to overcome the above disadvantages and provide a wood-type metal golf club, head which can give a lengthened shot and reduce the metallic sound during hitting.
- Another object of the present invention is to provide a wood-type metal golf club head making a sound akin to that of a persimmon or carbon club head when it is hit.
- Still another object of the present invention is to provide a process for easily producing such a wood-type metal golf club head.
- the wood-type metal golf club head of the present invention attaining the above objects comprises a hollow metal head body and a core material filling the inside of the metal head body, wherein said core material is an aggregate prepared by fusing expandable beads comprising a microcapsule of a synthetic polymer and a gas enclosed therein to each other by the thermal expansion of the gas.
- a core material is formed by fusing many particulate expandable beads to each other by the expansion of the gas enclosed therein to form an aggregate, so that the inside of a metal head body can be filled with many cells uniformly dispersed therein, by which a lengthened shot can be attained and the metallic sound can be reduced. Further, by limiting the bulk specific gravity of the core material within a range of 0.05 to 0.15 g/cm 3 , a lengthened shot can be attained and the sound made during hitting is similar to that of a persimmon or carbon club head.
- a wood-type metal golf club head having these excellent properties can be produced by forming a metal into a hollow metal head body, injecting expandable beads comprising a microcapsule of a synthetic polymer and a gas enclosed therein into the cavity of the metal head body and the heating the resulting metal head to expand the beads, thereby attaching the beads to one another by fusion and thus forming a core material.
- FIG. 1 is a cross-sectional view of the wood-type metal golf club head of the present invention
- FIG. 2 is a cross-sectional view of the metal head body to be used in making the wood-type metal golf club head of the present invention.
- FIG. 3 is a graph showing the relationship between the bulk specific gravity of a core material and initial speed efficiency.
- a hollow metal head body 1 has a cavity 2 in its interior and a neck 4 to which a shaft is fixed.
- the cavity 2 is filled with a cellular core material 3 which, in accordance with the present invention, is an aggregate of expandable beads fused to each other.
- the expandable bead to be used in the present invention comprises a microcapsule of a synthetic polymer so that a gas enclosed therein and the volume of the bead will be expanded several times as much by heating it.
- the expandable bead to be preferably used is one having a mean particle diameter of as small as 5 to 30 ⁇ m in an unexpanded state and 10 to 100 ⁇ m in a thermally expanded state.
- the synthetic polymer to be used in the preparation of the microcapsule constituting the expandable bead is preferably a vinylidene chloride polymer.
- the vinylidene chloride polymer includes not only vinylidene chloride homopolymer but also vinylidene chloride copolymers.
- the comonomer to be copolymerized with vinylidene chloride is preferably vinyl chloride, acrylonitrile or methacrylonitrile.
- a vinylidene chloride-acrylonitrile copolymer is particularly preferable as the material of the above microcapsule.
- the expanding gas to be enclosed in the bead is preferably propane, n-butane, isobutane, n-pentane or isopentane, with the use of isobutane being preferred.
- the wood-type metal golf club head of the present invention can be produced by the use of an expandable bead described above as follows.
- a metal material is formed into a hollow metal head 1 as shown in FIG. 2.
- the metal material is preferably stainless steel or an aluminium alloy, though it is not particularly limited.
- expandable beads are injected into the cavity 2 through the neck 4 of the metal head body 1.
- the total volume of the beads to be injected may be 1/5 ⁇ 1/10 of that of the cavity 2.
- the resulting metal head body 1 is heated at 80° to 150° C. for about 30 minutes, during which the micro-capsules constituting the beads are expanded by the expansion of the gas enclosed therein, so that the cavity 2 is filled with the beads fused to each other, thus forming a core material 3.
- the core material 3 thus formed, fills the cavity 2 in a state wherein fine cells are uniformly dispersed. As a result, a lengthened shot can be attained and the metallic sound made during hitting is reduced.
- the bulk specific gravity of the core material contained in the metal golf club head thus produced is adjusted to 0.05, to 0.15 g/cm 3 , more preferably 0.07 to 0.13 g/cm 3 .
- a maximum initial speed efficiency of the club head can be attained.
- FIG. 3 shows the relationship between the bulk specific gravity of the core material and the initial speed efficiency with respect to a metal golf club head produced according to the present invention. It is to understood from the results given in FIG. 3 that the initial speed efficiency is enhanced when the bulk specific gravity of the core material falls within the range of 0.05 to 0.15 g/cm 3 , preferably 0.07 to 0.13 g/cm 3 .
- the results given in FIG. 3 were obtained under the following conditions:
- metal head body made of stainless steel SUS 17-4 cavity volume: 75 ml
- expandable bead vinylidene chloride-acrylonitrile copolymer microcapsule containing isobutane (trade name: Expancel, a product of Japan Filite Co., Ltd.)
- initial speed efficiency determined based on the initial speed of a ball hit by a swing robot at a head speed of 27 m/sec.
- the initial speed efficiency ( ⁇ ) given in FIG. 3 was shown by an index calculated by assuming the initial speed of a ball hit with a golf club having a metal head not filled with any core material to be 100 (base).
- the wood-type metal golf club head according to the present invention is characterized by having a core material in which cells are uniformly dispersed, by which shot can be attained and the undesirable metallic sound made during can be reduced.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Golf Clubs (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2226732A JPH04109973A (en) | 1990-08-30 | 1990-08-30 | Manufacture of metal wood golf club head |
JP2405632A JP2939661B2 (en) | 1990-12-25 | 1990-12-25 | Metal wood golf club head |
Publications (1)
Publication Number | Publication Date |
---|---|
US5135227A true US5135227A (en) | 1992-08-04 |
Family
ID=26527328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/750,306 Expired - Lifetime US5135227A (en) | 1990-08-30 | 1991-08-27 | Wood-type metal golf club head and process for producing the same |
Country Status (1)
Country | Link |
---|---|
US (1) | US5135227A (en) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2270630A (en) * | 1992-09-22 | 1994-03-23 | Sumitomo Rubber Indsutries Ltd | Golf club head. |
US5306450A (en) * | 1991-08-13 | 1994-04-26 | The Yokohama Rubber Co., Ltd. | Method of producing wood type golf club head |
US5328176A (en) * | 1993-06-10 | 1994-07-12 | Lo Kun Nan | Composite golf head |
US5348302A (en) * | 1991-12-09 | 1994-09-20 | Daiwa Golf Co., Ltd. | Golf club head |
US5410798A (en) * | 1994-01-06 | 1995-05-02 | Lo; Kun-Nan | Method for producing a composite golf club head |
US5451056A (en) * | 1994-08-11 | 1995-09-19 | Hillerich And Bradsby Co., Inc. | Metal wood type golf club |
US5465969A (en) * | 1994-01-18 | 1995-11-14 | Dunlop Slazenger Corporation | Foamed core golf club |
US5499819A (en) * | 1993-01-08 | 1996-03-19 | Yamaha Corporation | Golf club head and a method for producing the same |
US5647808A (en) * | 1996-05-13 | 1997-07-15 | Kabushiki Kaisha Hosokawaseisakusho | Driver head for golf |
US5766090A (en) * | 1994-01-28 | 1998-06-16 | Orlowski; Michael E. | Vibration dampening material for putter shafts |
US5769735A (en) * | 1995-09-11 | 1998-06-23 | Kabushiki Kaisha Hosokawaseisakusho | Metal wood golf club head |
US5904628A (en) * | 1997-06-12 | 1999-05-18 | Hillerich & Bradsby Co. | Golf club |
US20050043111A1 (en) * | 2003-08-22 | 2005-02-24 | Lyons-Leon Albert | Golf Club Head and Method of Producing the Same |
US7294066B1 (en) | 2002-07-03 | 2007-11-13 | Richard Jr Joseph K | Golf putter head |
US20080102980A1 (en) * | 2006-10-30 | 2008-05-01 | Richard Joseph K | Golf putter |
US20100048323A1 (en) * | 2003-05-21 | 2010-02-25 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20100151960A1 (en) * | 2003-05-21 | 2010-06-17 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20110028240A1 (en) * | 2009-07-29 | 2011-02-03 | Taylor Made Golf Company, Inc. | Golf club head |
WO2012149490A1 (en) * | 2011-04-29 | 2012-11-01 | Xene Corporation | Improved composite member and method of making |
US20150126303A1 (en) * | 2005-04-21 | 2015-05-07 | Cobra Golf Incorporated | Golf club head with high specific-gravity materials |
US9504889B2 (en) | 2005-04-21 | 2016-11-29 | Cobra Golf Incorporated | Golf club with multi-component construction |
US9855474B2 (en) | 2005-04-21 | 2018-01-02 | Cobra Golf Incorporated | Golf club head with accessible interior |
US9901794B2 (en) | 2005-04-21 | 2018-02-27 | Cobra Golf Incorporated | Golf club head with removable component |
US20220249920A1 (en) * | 2021-02-09 | 2022-08-11 | James Patrick Harrington | System and method for manufacture of golf club with polymer injection |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864181A (en) * | 1972-06-05 | 1975-02-04 | Pratt & Lambert Inc | Polymer foam compositions |
US4128963A (en) * | 1976-07-07 | 1978-12-12 | Fansteel, Inc. | Method for preparing a composite high strength to weight structure with fray resistance |
US4413822A (en) * | 1981-07-31 | 1983-11-08 | American Sports Equipment | Elastic core composite structure and method of making same |
JPS60122580A (en) * | 1983-12-08 | 1985-07-01 | 横浜ゴム株式会社 | Golf club |
JPH02124182A (en) * | 1988-11-04 | 1990-05-11 | Yokohama Rubber Co Ltd:The | Golf club head |
JPH035767A (en) * | 1989-06-02 | 1991-01-11 | Ricoh Co Ltd | Image forming device |
-
1991
- 1991-08-27 US US07/750,306 patent/US5135227A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3864181A (en) * | 1972-06-05 | 1975-02-04 | Pratt & Lambert Inc | Polymer foam compositions |
US4128963A (en) * | 1976-07-07 | 1978-12-12 | Fansteel, Inc. | Method for preparing a composite high strength to weight structure with fray resistance |
US4413822A (en) * | 1981-07-31 | 1983-11-08 | American Sports Equipment | Elastic core composite structure and method of making same |
JPS60122580A (en) * | 1983-12-08 | 1985-07-01 | 横浜ゴム株式会社 | Golf club |
JPH02124182A (en) * | 1988-11-04 | 1990-05-11 | Yokohama Rubber Co Ltd:The | Golf club head |
US5007643A (en) * | 1988-11-04 | 1991-04-16 | The Yokohama Rubber Co., Ltd. | Golf club head |
JPH035767A (en) * | 1989-06-02 | 1991-01-11 | Ricoh Co Ltd | Image forming device |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5306450A (en) * | 1991-08-13 | 1994-04-26 | The Yokohama Rubber Co., Ltd. | Method of producing wood type golf club head |
US5348302A (en) * | 1991-12-09 | 1994-09-20 | Daiwa Golf Co., Ltd. | Golf club head |
US5411255A (en) * | 1992-09-22 | 1995-05-02 | Sumitomo Rubber Industries, Ltd. | Golf club head |
GB2270630B (en) * | 1992-09-22 | 1995-08-02 | Sumitomo Rubber Ind | Golf club head |
GB2270630A (en) * | 1992-09-22 | 1994-03-23 | Sumitomo Rubber Indsutries Ltd | Golf club head. |
US5499819A (en) * | 1993-01-08 | 1996-03-19 | Yamaha Corporation | Golf club head and a method for producing the same |
US5328176A (en) * | 1993-06-10 | 1994-07-12 | Lo Kun Nan | Composite golf head |
US5410798A (en) * | 1994-01-06 | 1995-05-02 | Lo; Kun-Nan | Method for producing a composite golf club head |
US5465969A (en) * | 1994-01-18 | 1995-11-14 | Dunlop Slazenger Corporation | Foamed core golf club |
US5507985A (en) * | 1994-01-18 | 1996-04-16 | Dunlop Slazenger Corporation | Method of making a foamed core golf club having a core density gradient |
US5766090A (en) * | 1994-01-28 | 1998-06-16 | Orlowski; Michael E. | Vibration dampening material for putter shafts |
US5451056A (en) * | 1994-08-11 | 1995-09-19 | Hillerich And Bradsby Co., Inc. | Metal wood type golf club |
US5769735A (en) * | 1995-09-11 | 1998-06-23 | Kabushiki Kaisha Hosokawaseisakusho | Metal wood golf club head |
US5647808A (en) * | 1996-05-13 | 1997-07-15 | Kabushiki Kaisha Hosokawaseisakusho | Driver head for golf |
US5904628A (en) * | 1997-06-12 | 1999-05-18 | Hillerich & Bradsby Co. | Golf club |
US7294066B1 (en) | 2002-07-03 | 2007-11-13 | Richard Jr Joseph K | Golf putter head |
US20100099513A1 (en) * | 2003-05-21 | 2010-04-22 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US7871340B2 (en) | 2003-05-21 | 2011-01-18 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US8777776B2 (en) | 2003-05-21 | 2014-07-15 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20100048323A1 (en) * | 2003-05-21 | 2010-02-25 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20100096079A1 (en) * | 2003-05-21 | 2010-04-22 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20100151960A1 (en) * | 2003-05-21 | 2010-06-17 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US7850546B2 (en) | 2003-05-21 | 2010-12-14 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US7862452B2 (en) | 2003-05-21 | 2011-01-04 | Taylor Made Golf Company, Inc. | Golf club head having a composite face insert |
US20050043111A1 (en) * | 2003-08-22 | 2005-02-24 | Lyons-Leon Albert | Golf Club Head and Method of Producing the Same |
US9504889B2 (en) | 2005-04-21 | 2016-11-29 | Cobra Golf Incorporated | Golf club with multi-component construction |
US9901794B2 (en) | 2005-04-21 | 2018-02-27 | Cobra Golf Incorporated | Golf club head with removable component |
US9855474B2 (en) | 2005-04-21 | 2018-01-02 | Cobra Golf Incorporated | Golf club head with accessible interior |
US20150126303A1 (en) * | 2005-04-21 | 2015-05-07 | Cobra Golf Incorporated | Golf club head with high specific-gravity materials |
US7485051B2 (en) | 2006-10-30 | 2009-02-03 | Richard Jr Joseph K | Golf putter |
US20080102980A1 (en) * | 2006-10-30 | 2008-05-01 | Richard Joseph K | Golf putter |
US8328663B2 (en) | 2009-07-29 | 2012-12-11 | Taylor Made Golf Company, Inc. | Golf club head |
US8814725B2 (en) | 2009-07-29 | 2014-08-26 | Taylor Made Golf Company, Inc. | Golf club head |
US8517863B2 (en) | 2009-07-29 | 2013-08-27 | Taylor Made Golf Company, Inc. | Golf club head |
US9265995B2 (en) | 2009-07-29 | 2016-02-23 | Taylor Made Golf Company, Inc. | Golf club head |
US20110028240A1 (en) * | 2009-07-29 | 2011-02-03 | Taylor Made Golf Company, Inc. | Golf club head |
US8088025B2 (en) | 2009-07-29 | 2012-01-03 | Taylor Made Golf Company, Inc. | Golf club head |
USRE47653E1 (en) | 2009-07-29 | 2019-10-22 | Taylor Made Golf Company, Inc. | Golf club head |
USRE49326E1 (en) | 2009-07-29 | 2022-12-06 | Taylor Made Golf Company, Inc. | Golf club head |
WO2012149490A1 (en) * | 2011-04-29 | 2012-11-01 | Xene Corporation | Improved composite member and method of making |
US20220249920A1 (en) * | 2021-02-09 | 2022-08-11 | James Patrick Harrington | System and method for manufacture of golf club with polymer injection |
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Legal Events
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